EP 0098711 B1 19880831 - ELECTRICAL MACHINING SYSTEM AND METHOD OF PROCESSING A MACHINING LIQUID THEREIN
Title (en)
ELECTRICAL MACHINING SYSTEM AND METHOD OF PROCESSING A MACHINING LIQUID THEREIN
Publication
Application
Priority
- JP 10894282 A 19820623
- JP 11910582 A 19820708
Abstract (en)
[origin: US4551602A] An electrical machining system utilizing a machining liquid consisting at least in a major part of an aqueous solution containing a deionized water and a surface active agent dissolved therein, the latter having a temperature-dependent solubility in the solution and a cloud point, i.e. a temperature below which it remains dissolved therein. The machining liquid is supplied into a machining zone which produces a liquid effluent in which machining products are entrapped. The liquid effluent is fed to a separation zone where it is heated at a temperature above its cloud point to separate out an amount of the surface active agent and to collect that amount substantially in a solid form while forming a liquid output constituted by a remainder of the liquid effluent. The surface active agent is collected by deposition on a carrier material, e.g. iron particles. When iron particles are used, an electromagnet may be employed to decrease the time necessary to recover the surface active agent. The carrier material having the deposit of the surface active agent may be brought into contact with a cool deionized water to form a solution of the collected surface active agent therein.
IPC 1-7
IPC 8 full level
CPC (source: EP US)
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
EP 0098711 A1 19840118; EP 0098711 B1 19880831; DE 3377864 D1 19881006; DE 98711 T1 19850131; US 4551602 A 19851105
DOCDB simple family (application)
EP 83303580 A 19830621; DE 3377864 T 19830621; DE 83303580 T 19830621; US 50644883 A 19830621